Ashlee Simpson and Pete Wentz Reunite for Bronx Playdate

Two months after Ashlee Simpson, 26, filed for divorce from Pete Wentz, 31. They were spotted together in L.A. March 31. The pair were all smiles as they reunited for a family-friendly outing with adorable son Bronx, 2. This isn't the first post-split get-together for Simpson and Wentz. On March 12, they grabbed burgers and fries at an L.A. In-n-Out Burger and the next day noshed on more greasy eats at a local Taco Bell. "Ashlee's been my best friend for five years," Wentz said in a recent interview. "She's the mother of my child. I have nothing but love and respect for her."

Lady Gaga Kicks Adam Lambert Out of Her B-Day Bash

Adam Lambert, 29, wasn't even invited to Lady Gaga's surprise twenty-fifth birthday party Sunday night at L.A.'s La Cita Mexican restaurant, but attended as a guest of the Scissor Sisters, who have been opening for Gaga on tour, Perez Hilton told the Morning Dish radio program Thursday. Lambert began some intense fist-pumping and kept beating on the walls until he'd actually punched a hole in the building's low ceiling, Hilton said. According to eyewitness, he acted like an animal. He kept jumping up on the tables and chairs and screaming. When they brought the cake out he tried to smear it in Gaga's face and put a doll from the cake in her mouth! Eventually Gaga asked her security to kick him out, added the witness.

Michael Buble Weds Luisana Lopilato in Buenos Aires

Michael Buble, 35, married gal pal of two years Luisana Lopilato, 23, in a civil ceremony in Buenos Aires Thursday. The bride wore a lilac chiffon dress and silver heels, while the groom donned a gray suit. The newlyweds posed for a mob of fans after tying the knot at the civil registry downtown. They exchanged a kiss and Lopilato tossed her bouquet of orchids into the crowd, according to reports. See more photos from their wedding! Buble, who dated Emily Blunt for two years and was once engaged to singer-actress Debbie Timuss, began seeing Lopilato in 2009 after meeting her on a South American tour. He proposed to her in front of her family in Argentina in November.

More photos here.

Scarlett Johansson and Sean Penn Debut Romance at Reese's Wedding

According to People, Scarlett Johansson, 26, and Sean Penn, 50, arrived at Reese Witherspoon's Ojai wedding on Saturday. Although the couple were caught packing on the PDA during a romantic trip to Cabo San Lucas, Mexico, Johansson and Penn have tried to keep their fledgling romance quiet closer to home. But the duo were finally ready to go public on Saturday at Reese Witherspoon's wedding to Jim Toth.

Pregnant Mariah Carey Paints Her Belly for 42nd B-Day

While celebrating her 42nd birthday on Monday, Mariah Carey, who is expecting twins with hubby Nick Cannon posted a twitpic of her painted baby belly, festooned with a huge, colorful butterfly. "My attempt @ festiveness on 327" she wrote in the caption. The day before, she started having contractions and was taken to the hospital, but it was a false alarm. "They almost came on 3/27 - happy anniversary indeed!!! We have a few more weeks 2 go but - wow!!!:)" She added: "so ready already!"

Amy Adams Cast as Lois Lane in Superman

Amy Adams, 36, has been cast to play Daily Planet journalist Lois Lane in Zach Snyder's Superman reboot, according to the L.A. Times. "There was a big, giant search for Lois," Snyder told paper. "It was obviously a really important role. We did a lot of auditioning but we had this meeting with Amy Adams and after that I just felt she was perfect for it." Earlier this year Henry Cavill, 27, was cast as the man of steel for the flick expected to hit theaters in 2012.

Lindsay Lohan Dropping Last Name

Lindsay Lohan, 24, is dropping her famous last name, according to PopEater. "Lindsay is dropping the Lohan and just going by Lindsay," her mum, Dina, 48, explained, adding, "Plus, me and younger daughter Ali will be officially changing our last names back to my maiden name, Sullivan."

Reese Witherspoon and Jim Toth Tie the Knot

Reese Witherspoon, 35, married Jim Toth, 40, early Saturday evening at her 6-acre ranch in Ojai, Calif., according to People. Wearing a custom-designed Monique Lhuillier gown, Witherspoon exchanged vows with Toth in front of 120 family members and friends in the front courtyard of the Ojai house. The couple became engaged in December and has been dating for about a year. This marks the second marriage for the actress, who was married to actor Ryan Phillippe, 36, between 1999 and 2008. During their marriage Witherspoon and Phillippe had two children daughter Ava, 11 and son Deacon, 7.

Elizabeth Taylor Buried Near Beloved Michael Jackson

Elizabeth Taylor was laid to rest in the same celebrity cemetery as her long-time friend Michael Jackson. Taylor, who died Wednesday aged 79, was sent off with an hour-long private ceremony at the Forest Lawn Memorial Park on Thursday, where generations of Hollywood stars are buried. But her last wishes were respected, and announced after the service had finished. Forest Lawn is where Jackson was buried following his death in June 2009 aged 50, from an overdose of the powerful sedative propofol. Taylor attended that private ceremony. During their lives, Jackson and Taylor were at times inseparable, with homes near each other in the plush Bel Air and Beverly Hills neighborhoods west of Hollywood.

David Beckham’s New Adidas Ad

David Beckham is showing off his skills in a commercial for the new all Adidas campaign, which captures the passion athletes, musicians and artists put into their game. In Beckham's spot, he sports a pair of bright blue ClimaCool Ride shoes and runs through an empty stadium, working his hot bod during some intense warm-ups. The shoe is the brand's newest pair of kicks, boasting 360-degree ventilation, which attacks the humidity and temperature issues that often cause foot discomfort in athletes. And the footwear is just as fashionable as it is functional - the shoe comes in 26 different hues. Beckham joins Katy Perry, who revealed her fashion inspirations during her colorful shoot, as a face of the campaign.

Rebecca Black Perform Friday on Tonight Show with Jay Leno

Rebecca Black, 13, appeared on The Tonight Show with Jay Leno last night (22Mar) to perform her hit song Friday. But her appearance was more for the interview than the song. Her YouTube video of Friday has 36.5 million views, but a lot of the attention to her song has been negative and plenty of people have been making their own parodies of her video. She revealed to Jay that she's donating the money she's making from all the attention her song has received to Japan and her school.

Watch her perform live here.

Jessica Biel Flirts With Gerard Butler

Just days after announcing her split with beau of four years Justin Timberlake, Jessica Biel, 29, was spotted cozying up to her Playing the Field costar Gerard Butler, 41. They were spotted at a crew member's birthday party at a Japanese restaurant on March 15, where once Gerard arrived they couldn't be separated. Two nights later, the duo was seen throwing back margaritas at a Mexican restaurant. And that's not all, they shared two more dinners later that week!

Elizabeth Taylor Dies at Age 79

Elizabeth Taylor died at Cedars-Sinai hospital in L.A. Wednesday. She was 79. She died with all of her beloved children at her side. She has been in the hospital for some weeks, being treated for congestive heart failure. Over the past ten years, she has suffered from a back injury, numerous severe pneumonia bouts, skin cancer, the pain of 2 hip replacements, removal of a benign brain tumor, and from a fall out of her bed.

Evan Rachel Wood Talks Nude Scenes

Evan Rachel Wood, 23, plays the daughter of Kate Winslet's character in the upcoming HBO mini-series Mildred Pierce (premiering March 27) and the risqué role called for the young actress' first nude scene. But lucky for Wood, her co-star, Kate Winslet, 35, has stripped down on film several times before and was there to lend support. "She coached me through my first nude scene," Wood told E! News at Monday evening's premiere. "I mean, she's done it all. She was literally next to the camera going [thumbs-up]."

The First Glimpse of William And Kate Movie Revealed

An American channel called Lifetime has commissioned a made-for-telly movie about Kate Middleton and Prince William, following their lives from when they first met at university through to their wedding day as played by actors Nico Evers-Swindell and Camilla Luddington. The film chronicles the eight-year romance for Prince William, 28, and fiancé Kate Middleton, 29, who met while attending Scotland's University of St. Andrews. The couple is set to wed April 29 at England's Westminster Abbey in the most anticipated wedding of the decade. William and Kate premieres April 19 on Lifetime.

Tiger Woods Has a New Girlfriend

Tiger Woods, 35, has a new girlfriend named Alyse Lahti Johnston, 22 according to several reports. Sports blog Terez Owens first broke the the news that Woods and Lahti have been dating for a few weeks, and were recently spotted together on his 155-foot yacht, Privacy. It was reported that Johnston is the step-daughter of Glasgow Rangers chairman Alastair Johnston, an executive at the IMG agency that represents Woods. It also claimed that Johnston's biological father is former St Louis baseball pitcher Jeff Lahti.